28536880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20983}}^1$

素因数の和:21013

約数の個数: 40

約数和(自身を含む): 70254432

約数和(自身を除く): 41717552

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20983, 41966, 83932, 104915, 167864, 209830, 335728, 356711, 419660, 713422, 839320, 1426844, 1678640, 1783555, 2853688, 3567110, 5707376, 7134220, 14268440, 28536880]

約数ペア:

[(1, 28536880), (2, 14268440), (4, 7134220), (5, 5707376), (8, 3567110), (10, 2853688), (16, 1783555), (17, 1678640), (20, 1426844), (34, 839320), (40, 713422), (68, 419660), (80, 356711), (85, 335728), (136, 209830), (170, 167864), (272, 104915), (340, 83932), (680, 41966), (1360, 20983)]